4.9
Saw this question today, If you take the trig function of two different values, the results could be equal, but there is no reason they have to be. In this case, the two results are not equal. …
Main Content
sin^2x = (sinx)^2 Squared Trig Function Notation
We went into verifying some equations with trigonometric. They involved angles in both degrees and radians. Sometimes with equations that had notation of something like sin^2x, which means (sinx)^2 …
Continue Reading about sin^2x = (sinx)^2 Squared Trig Function Notation →
Moment of Inertia, Summation of torques
We started by talking about impulse. It is notated using the letter J, not the letter I. In the context of chapter 9, I was the momentum of inertia which has a similar role that mass does for linear …
Continue Reading about Moment of Inertia, Summation of torques →
Solving Inequalities and finding intervals, Tutoring Precalculus
We started by looking at the Friday Sheet. With inequalities, the steps are basically 1. Use factoring/etc to find boundary points 2. Plot the boundary points with open or closed circles on a number …
Continue Reading about Solving Inequalities and finding intervals, Tutoring Precalculus →
Elastic and Inelastic Collisions, Notes from Tutoring Physics
We went over a collision that was in two different parts assumed to be elastic and inelastic. For an elastic collision, energy is conserved and momentum is conserved. For an inelastic collision, …
Continue Reading about Elastic and Inelastic Collisions, Notes from Tutoring Physics →
Getting Arc Length, Tutoring Precalculus
We started with a word problem trying to find arc length based on latitude and longitude. Reviewed the equations for the circumference of a circle and the area of a circle. You can get arc length by …
Continue Reading about Getting Arc Length, Tutoring Precalculus →